trans-1-Propenylboronic acid pinacol ester
Tech Serve Solutions (TSS) supplies trans-1-Propenylboronic acid pinacol ester (CAS: 83947-58-4), a versatile organoboron compound with the molecular formula C9H17BO2. This flammable liquid, with a molecular weight of 168.04 g/mol, is a key intermediate in organic synthesis. It is widely employed in cross-coupling reactions, particularly Suzuki-Miyaura couplings, for the formation of carbon-carbon bonds. Its utility extends to the synthesis of complex molecules in pharmaceutical and materials science research.
- IUPAC
- trans-1-Propeneboronic acid pinacol ester,trans-2-(1-Propen-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
- Synonyms
- trans-1-Propeneboronic acid pinacol estertrans-2-(1-Propen-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

Suzuki-Miyaura Coupling Reagent
This pinacol ester serves as an effective coupling partner in Suzuki-Miyaura reactions, enabling the synthesis of substituted alkenes and aromatic compounds. It facilitates the formation of robust carbon-carbon bonds under mild conditions.
Organic Synthesis Intermediate
As a valuable building block, trans-1-Propenylboronic acid pinacol ester is instrumental in the construction of more complex organic structures. It finds application in multi-step syntheses within academic and industrial research settings.
Materials Science Research
The compound can be utilized in the development of novel organic materials. Its specific structure allows for incorporation into polymers or other advanced materials requiring precise chemical functionalities.
| Molecular weight | 168.04 |
|---|---|
| Empirical formula | C9H17BO2 |
| Assay | 97% |
| Density | 0.881 g/mL at 25 °C |
| Refractive index | n20/D 1.433 |

Hazard statements
- H226Flammable liquid and vapour
| Flash point | 53 °C / 127.4 °F |
|---|---|
| Transport (UN / ADR) | UN 1993C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Risk statements (R) | 10 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is trans-1-Propenylboronic acid pinacol ester used for?
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trans-1-Propenylboronic acid pinacol ester is primarily used as a reagent in Suzuki-Miyaura coupling reactions for carbon-carbon bond formation and as an intermediate in organic synthesis for creating complex molecules, particularly in pharmaceutical and materials science research.
What are the CAS number and formula for trans-1-Propenylboronic acid pinacol ester?
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The CAS number is 83947-58-4 and the empirical formula is C9H17BO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies trans-1-Propenylboronic acid pinacol ester with an assay of 97%. TSS does not represent this product as USP, BP, EP, or any pharmacopoeia grade.
What are the main safety hazards associated with this chemical?
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This compound is a flammable liquid and vapour (H226), requiring careful handling away from ignition sources. It is classified as a Warning with GHS02 symbol.
How is trans-1-Propenylboronic acid pinacol ester packed and exported?
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TSS professionally packs and exports chemicals globally, adhering to all relevant shipping regulations for hazardous materials, including UN 1993 C3/PGIII.
How can I request a quote or sample?
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Please contact our sales team via the website or direct email to request a quotation or a sample of trans-1-Propenylboronic acid pinacol ester.
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